!
With “digital cameras”:http://www.nyip.com/tips/current/digfirewks.php, you need a tripod, a cable release and if you have a dSLR, mirror lockup, to prevent shaking. They are set so you need 1-3 seconds to achieve an aperture and ISO:
| ISO SETTING | APERTURE RANGE |
| ISO 50 | Æ/5.6 to 11 |
| ISO 100 | Æ/8 to 16 |
| ISO 200 | Æ/11 to 22 |